Master-jack and stand for automobiles



E. L. BARRETT. .MASTER lTACK AND STAND FOR AUTOMOBILES.

APPLICATIONFILED F-EB. 6, 192A). Mar. 1, V 2 SHEETS-SHEET l.

E. -L. BARRETT.

MASTER JACK AND STAND F03 AUTOMOBILES.

APPLICATION FILED FEB. 6,4920. u

' Patent/0d Mar. 1, 1921.

2 SHEETS-SHEET 2.

@- @IT I TTTTTTATHATIH n* www - UNITED sTAr ELMER L. Bananrn'or ALLEN, NEBRASKA. 'i i j MASTER-JACK AND STAND nonl ArrjroivioniLas.Y

i Application filed. February 6, 1920,.- Serial No; 356,606. i.

.motor vehicle bodily off'of the ground and I hold the same at any desired position so as to permit repairs tobe conveniently made to the underside of the vehicle, and topermit the easy removal o-f the tires or wheels there:- from. j

Another object -of the inventionv is-to pro-V Vide an improved jack and stand'which can be readily operated and whichis adapted to hold the Vvehicle offof the ground so as to ings:

relieve the weight from ,the tires when the vehicle is to be stored or the like.

VA further object of theinvention is to provide means for preventing accidental slip.- ping of the vehicle on the jack or stand during the raising or lowering Y movement thereof. ji" I A further object of the invention is t0v provide an improved means for initially po-v sitioning the supporting and raising'platform in'engagement with the vehicle axles so as to eliminate the necessity of operating the stand or platform bythe step by step jacking means. l

A still further object of the invention 1s Vto provide an improved motor vehicle jack'and stand of the above character which is .durable and efficient in use, one that is simple and easy to manufacture, and one which can be placed upon the market at a reasonable cost.

Other objects and advantages will appear in the following detail Vdescription taken in connection'V with the drawings, forming :a part of this specification, in which draw- Figure 1 is a side elevation of the im proved jack or stand showing the same in operative position supporting a motor vehicle, which is shown in dottedlines.

Figf2 is a similar view with'the jack in its collapsed lposition and the motor vehicle ready to bev driven therefrom.

. Fig.l 3 is a topplanview of the jack.

Specification of Letters Patent."

l 'Patented Mar. 1,

Fig. a isla .detail VVtransverse section through the jack,-and l x Fig.' 5'is an enlarged fragmentary longitudlnalsection through the jack showing the means for elevating and lowering the supporting platform or stand.- i Y TENTDFFICE- Referring to 'the drawings, in detail, v i

`wherein similar. reference characters designate corresponding parts throughout Vthe proved stand -which includesl the upper frame or supporting platform B, the lower framel C, and the loweringv orfelevating meansD.

c5 .severalviews, the letter A indicates the im- V'The upperv frame' Blis arranged in'supervposed relation to the lower frame@ and inchicles the parallelspaced side beams 10a1ld Y the' connecting end bars 11. Y The side beams 10 andthe connecting end bars 11are prefer- Y ablyformed 4from. angle iron or the like. andv f are -reinforced at their 'points :of connection by lsuitable triangularly vshapedweb plates 12. The beams 10 intermediate their ends are connected byfa cross. tie' rod 13 :and eX- tendingrearwardly from the tie rod 13-are oppositely inclinedpdia onalbraces 14, which are lconnected Vto 'one of'fthe.V end vbars 11.

' The lower frame C is also of substantially rectangular configuration .Y and is relatively longer 'than the upper frame B and'thefsame includes 1 the" parallel spaced longitudinal 5' side beams 15 and the `connectingendfbeams 16. The' side and end'V beams-` 15 and'16 are v also preferably formed froinangle iron with theV horizontal portions thereof kdisposed inwardly and the beams are bracedat Vtheir points of connection by suitable triangular shaped webplates V17. The longitudinal side bars 115 arev also braced and con# `nected adjacent tothe forward end bar 16 by va suitable cross angle bar 18. Tie rods l19 extend inwardly vfrom the cross brace 18 Vthrough the forward or end bar 16. The

to thev upper andv lower frames'B and C.

The upper frame B is disposed forwardly of the crossangle `barV 18, and positioned rearwardly of the cross bar 18 is the lowerf ing andelevatingmechanism 'The lowering and elevating meansD includes the hollow'casing or standard 23, which'has its lower end disposed between the's'paced angle brackets 24 which are bolted to the rear angle bars 16. The lower end of the hollow standard or casing 23 is connected to the brackets 24 by a suitable pivot pin 25. A solid rack bar 26 is slidably mounted in the casing 23 and projects forwardly therefrom and has itsjforward end provided with the U-shaped yoke27, which receivesthe connecting link 28 and the pivoted brace bar 29. The inner ends of the connecting .links 28 and the arm 29 disposed in the U-shaped yoke 27 are pivotally connected to the yoke by suitable cross pivot pins'30. V,Thei'orward endoi' the connecting link 28 is pivotally connected to a suitable bracket 31 carried bythe outer surface of the rear 'end beam 11 ofthe frame B. The lower end of the-'arm 29is pivotally connected toa .bracket'32se`cured to the cross brace'18. f'

The rack bar 26 is adapted to be advanced in the casing 23 by pair ot pivoted pawls 33' and 34.` which are disposed on opposite sides of the pivot point 35 of an operating lever 36.' The'operating lever 36 has a suitable latch 37V for holding the p'awls out of i engagement with the rack ba-r. y It can be seen by moving the lever back land'forth the rack bar will be advanced in astep by stepV movement and thus gradually moveV the upper framel B in relation'to the lower frame C.l

- VThe upper edgeszof the beams 10v of the upper `frame B 'are' provided at their opposite ends :with broken "or serrated faces bar 26 is provided ywith anu'pwairdlyrex tending handle 39 whichiserves as means for permitting theV rack bar tobe Yadvanced for initially. positioning the upper frame B in engagement with a motor vehiclek without necessitating the yoperation "of Ythe raising fand lowering mechanism D. V

In operation of the improved jack7 the frame B 'is arranged in AVitsflower position in abutting engagement withthe lower frame C'. The motor vehicle is then driven over vthe frame" as clearly shown in Fig.`2 of the drawings, after which the operator grasps the handle 39 and raises 'the frame 10 into'A engagement with the axles of the vehicle. "Whenthe operator'pushes therack bary 26 forwardly during the initial raising /of the' frame B, .the pawls 33 and 34 ride 'over the upper surface of the rack bar Vand permit thesame to be advancedg-'but prevent rear-ward movement thereof. rlhe operating lever`36 isthen worked back and forth VThe jack'may be used as ak stand for supporting vehiclesy while the-same are vbeing Y ventionybut, Y

Ystored or on show so as to relieve the weight 'moving the tires or wheelsfrom the vehicle.

If so desired the lower frame CY may be disposed or secured in any preferred manner to the floor or other support so as to pre= vent the creeping of the same. during the raising and lowering movement oi a motor fvehiele. 7

F rom the foregoing description it can be seen that an improved jack has been provided of exceptionally simple and durable construction, --which will effectively raise' and -hold'a vehicle body off of the ground.

Changes in detailsniaybe made without departing from thek spirit orscopelof my, in-

`Ielaimr:V Y e LA vehiclejack and stand comprising a lower substantially.rectangular frame, an

.upper substantially"rectangular trame, llegs -pivotally carried fby thefouter ends ofthe upper frame and pivotally conneetedto the lower frame, a-h'ollow'casing pivo'tally carried by the lower frame,V a rack bar slidably mounted' in "the casing, aclinl'lp'ivotally' connecting the rack kbar with the' upper Vframe,

and an operating lever Yearriedrby the casing and arranged toengage said vrack bar for advancing theV same by a step by step *movel ment. i l Y an upper frame, a lower frameg'le'gs piv-Y otally'carried by the corners of the upper 'frame and pivotally connected to the lower frame,A a casing pivotally carried 'fby the 2. Avehicle jack and' stand comprising lower frame, la rack bar slidably mounted in the casing, a 'link' pivotally connecting the rack bar with the upper fr'am'e5 a sup` porting arm pivotally connected 'to the rack "bar and to the lower frame7 a' lever pivotally connected to the casing,v anda-pair of pawls arranged on opposite si'desoi the pivotal point ofthe lever arranged 'to engage saidrackbar. c v c Y 3. AV vehicle jack and'stand comprising an'upper rentangular frame,"a lower frectangular frame `formed Vrelatively 'longer than the upper frame, legs pivot'ally conv necting the frames together, a casing fpiv- 'otally carried by the lower'frame, a rack bar c slldably mounted 1n the' casing,` aflink 'piv 'otally'connectin'gthe rack barl with the upper "frame, 'a supporting link pivotallyconnecting the rack bar with the lower frame'.v a lever lpivotally carriedV by thel casing',"pawls pivotally 'carried by the' lever and' arranged -to engage therack'bar, and a handle carried by therackbar arranged to 'permit the in? itial positioning of the upper frame in en- `gagement with the "vehicle without neees'si tatng the use ofsaid lever.

` .ELMER BARRETT. 

